How much does it coat for a green house in monopoly?

In Monopoly, the cost to build a greenhouse (referred to as a "house" in the game) is $50 for each house on a property. Players can build houses only if they own all the properties in a color set, and they can build up to four houses on each property before needing to build a hotel. The total cost will depend on how many houses you choose to build across the properties you control.